[Piano Calendar] This 2024 piano calendar features high and low notes arranged in correct pitch order. It includes 52 short pieces of world-famous music, making it easy to play beautiful melodies. Each calendar card represents one week. (Piano size: 4.33 x 3.54 x 3.54 inches). [Design and Use] Hand-crank mechanism for card release, innovative design with adjustable volume, playable with one hand. [Charging] USB charging; Card type: 52 world-famous pieces. Beginners can use sticky notes on the keys as markers, which is convenient and easy for learning. Color: White Material: ABS Package Contents: 1 x Desk calendar 1 x Charging cable 1 x Simple musical notation Only the above items are included; other products are not included. Note: Due to light reflection and differences in display screens, the color of the item in the image may vary slightly from the actual product. Measurement error allowance is +/- 1-3 cm.